openstack
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neutron
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neutron/neutron/tests/unit/test_agent_ext_plugin.py

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Python
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# Copyright (c) 2013 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import copy
import time
from oslo.config import cfg
from webob import exc
from neutron.api.v2 import attributes
from neutron.common import constants
from neutron.common import topics
from neutron import context
from neutron.db import agents_db
from neutron.db import db_base_plugin_v2
from neutron.extensions import agent
from neutron.openstack.common import log as logging
from neutron.openstack.common import timeutils
from neutron.openstack.common import uuidutils
from neutron.tests.unit import test_api_v2
from neutron.tests.unit import test_db_plugin
LOG = logging.getLogger(__name__)
_uuid = uuidutils.generate_uuid
_get_path = test_api_v2._get_path
L3_HOSTA = 'hosta'
DHCP_HOSTA = 'hosta'
L3_HOSTB = 'hostb'
DHCP_HOSTC = 'hostc'
DHCP_HOST1 = 'host1'
LBAAS_HOSTA = 'hosta'
LBAAS_HOSTB = 'hostb'
class AgentTestExtensionManager(object):
def get_resources(self):
# Add the resources to the global attribute map
# This is done here as the setup process won't
# initialize the main API router which extends
# the global attribute map
attributes.RESOURCE_ATTRIBUTE_MAP.update(
agent.RESOURCE_ATTRIBUTE_MAP)
return agent.Agent.get_resources()
def get_actions(self):
return []
def get_request_extensions(self):
return []
# This plugin class is just for testing
class TestAgentPlugin(db_base_plugin_v2.NeutronDbPluginV2,
agents_db.AgentDbMixin):
supported_extension_aliases = ["agent"]
class AgentDBTestMixIn(object):
def _list_agents(self, expected_res_status=None,
neutron_context=None,
query_string=None):
agent_res = self._list('agents',
neutron_context=neutron_context,
query_params=query_string)
if expected_res_status:
self.assertEqual(agent_res.status_int, expected_res_status)
return agent_res
def _register_agent_states(self, lbaas_agents=False):
"""Register two L3 agents and two DHCP agents."""
l3_hosta = {
'binary': 'neutron-l3-agent',
'host': L3_HOSTA,
'topic': topics.L3_AGENT,
'configurations': {'use_namespaces': True,
'router_id': None,
'handle_internal_only_routers':
True,
'gateway_external_network_id':
None,
'interface_driver': 'interface_driver',
},
'agent_type': constants.AGENT_TYPE_L3}
l3_hostb = copy.deepcopy(l3_hosta)
l3_hostb['host'] = L3_HOSTB
dhcp_hosta = {
'binary': 'neutron-dhcp-agent',
'host': DHCP_HOSTA,
'topic': 'DHCP_AGENT',
'configurations': {'dhcp_driver': 'dhcp_driver',
'use_namespaces': True,
},
'agent_type': constants.AGENT_TYPE_DHCP}
dhcp_hostc = copy.deepcopy(dhcp_hosta)
dhcp_hostc['host'] = DHCP_HOSTC
lbaas_hosta = {
'binary': 'neutron-loadbalancer-agent',
'host': LBAAS_HOSTA,
'topic': 'LOADBALANCER_AGENT',
'configurations': {'device_drivers': ['haproxy_ns']},
'agent_type': constants.AGENT_TYPE_LOADBALANCER}
lbaas_hostb = copy.deepcopy(lbaas_hosta)
lbaas_hostb['host'] = LBAAS_HOSTB
callback = agents_db.AgentExtRpcCallback()
callback.report_state(self.adminContext,
agent_state={'agent_state': l3_hosta},
time=timeutils.strtime())
callback.report_state(self.adminContext,
agent_state={'agent_state': l3_hostb},
time=timeutils.strtime())
callback.report_state(self.adminContext,
agent_state={'agent_state': dhcp_hosta},
time=timeutils.strtime())
callback.report_state(self.adminContext,
agent_state={'agent_state': dhcp_hostc},
time=timeutils.strtime())
res = [l3_hosta, l3_hostb, dhcp_hosta, dhcp_hostc]
if lbaas_agents:
callback.report_state(self.adminContext,
agent_state={'agent_state': lbaas_hosta},
time=timeutils.strtime())
callback.report_state(self.adminContext,
agent_state={'agent_state': lbaas_hostb},
time=timeutils.strtime())
res += [lbaas_hosta, lbaas_hostb]
return res
def _register_one_dhcp_agent(self):
"""Register one DHCP agent."""
dhcp_host = {
'binary': 'neutron-dhcp-agent',
'host': DHCP_HOST1,
'topic': 'DHCP_AGENT',
'configurations': {'dhcp_driver': 'dhcp_driver',
'use_namespaces': True,
},
'agent_type': constants.AGENT_TYPE_DHCP}
callback = agents_db.AgentExtRpcCallback()
callback.report_state(self.adminContext,
agent_state={'agent_state': dhcp_host},
time=timeutils.strtime())
return [dhcp_host]
def _register_one_l3_agent(self, host=L3_HOSTA, internal_only=True,
ext_net_id='', ext_bridge=''):
l3 = {
'binary': 'neutron-l3-agent',
'host': host,
'topic': topics.L3_AGENT,
'configurations': {'use_namespaces': True,
'router_id': None,
'handle_internal_only_routers': internal_only,
'external_network_bridge': ext_bridge,
'gateway_external_network_id': ext_net_id,
'interface_driver': 'interface_driver',
},
'agent_type': constants.AGENT_TYPE_L3}
callback = agents_db.AgentExtRpcCallback()
callback.report_state(self.adminContext,
agent_state={'agent_state': l3},
time=timeutils.strtime())
class AgentDBTestCase(AgentDBTestMixIn,
test_db_plugin.NeutronDbPluginV2TestCase):
fmt = 'json'
def setUp(self):
self.adminContext = context.get_admin_context()
plugin = 'neutron.tests.unit.test_agent_ext_plugin.TestAgentPlugin'
# for these tests we need to enable overlapping ips
cfg.CONF.set_default('allow_overlapping_ips', True)
# Save the original RESOURCE_ATTRIBUTE_MAP
self.saved_attr_map = {}
for resource, attrs in attributes.RESOURCE_ATTRIBUTE_MAP.iteritems():
self.saved_attr_map[resource] = attrs.copy()
ext_mgr = AgentTestExtensionManager()
self.addCleanup(self.restore_resource_attribute_map)
super(AgentDBTestCase, self).setUp(plugin=plugin, ext_mgr=ext_mgr)
def restore_resource_attribute_map(self):
# Restore the originak RESOURCE_ATTRIBUTE_MAP
attributes.RESOURCE_ATTRIBUTE_MAP = self.saved_attr_map
def test_create_agent(self):
data = {'agent': {}}
_req = self.new_create_request('agents', data, self.fmt)
_req.environ['neutron.context'] = context.Context(
'', 'tenant_id')
res = _req.get_response(self.ext_api)
self.assertEqual(res.status_int, exc.HTTPBadRequest.code)
def test_list_agent(self):
agents = self._register_agent_states()
res = self._list('agents')
for agent in res['agents']:
if (agent['host'] == DHCP_HOSTA and
agent['agent_type'] == constants.AGENT_TYPE_DHCP):
self.assertEqual(
'dhcp_driver',
agent['configurations']['dhcp_driver'])
break
self.assertEqual(len(agents), len(res['agents']))
def test_show_agent(self):
self._register_agent_states()
agents = self._list_agents(
query_string='binary=neutron-l3-agent')
self.assertEqual(2, len(agents['agents']))
agent = self._show('agents', agents['agents'][0]['id'])
self.assertEqual('neutron-l3-agent', agent['agent']['binary'])
def test_update_agent(self):
self._register_agent_states()
agents = self._list_agents(
query_string='binary=neutron-l3-agent&host=' + L3_HOSTB)
self.assertEqual(1, len(agents['agents']))
com_id = agents['agents'][0]['id']
agent = self._show('agents', com_id)
new_agent = {}
new_agent['agent'] = {}
new_agent['agent']['admin_state_up'] = False
new_agent['agent']['description'] = 'description'
self._update('agents', com_id, new_agent)
agent = self._show('agents', com_id)
self.assertFalse(agent['agent']['admin_state_up'])
self.assertEqual('description', agent['agent']['description'])
def test_dead_agent(self):
cfg.CONF.set_override('agent_down_time', 1)
self._register_agent_states()
time.sleep(1.5)
agents = self._list_agents(
query_string='binary=neutron-l3-agent&host=' + L3_HOSTB)
self.assertFalse(agents['agents'][0]['alive'])
class AgentDBTestCaseXML(AgentDBTestCase):
fmt = 'xml'
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